Definition: In this task you are given a small conversation between two persons and 4 options on how the conversation should continue. Your job is to choose the most reasonable option. The conversation and the options are separated by a newline character. Each dialogue in the conversation are separated by a comma. F and M indicate female and male, respectively.
Input: F: I got something really special in the mail today. It's about classes to help you set up your own Internet business. Doesn't that sound fun? ,M: Oh, gosh! I don't know, just how much are these classes? ,F: $500 for 5 classes. But they guarantee that you'll have your business set up on a website before your done.
(A) M: $1000 for 20 classes, so each class will cost $50. (B) M: I’m sorry, I didn’t catch that. Would you mind speaking more slowly? (C) M: As $500 for 5 classes, then each class costs $100. (D) M: $150 each class, and they have 5 classes, so it will cost $750 for 5 classes.

C